Patents by Inventor Isidro D. Ignacio

Isidro D. Ignacio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Machine for planting containerized tree and shrub seedlings
    Patent number: 4278035
    Abstract: A seedling planter consisting of a portable frame on which is mounted a horizontally rotatable, vertically movable index plate carrying a vertically movable, normally lowered scraper blade, a telescopic seedling drop tube, an auger, an auger hydraulic motor and a gear box coupling the motor to the auger. A carousel tray containing seedlings is rotatably mounted on the frame over the index plate, being rotatable stepwise by a pawl on the end of the piston rod of a retraction-extension hydraulic cylinder mounted on the frame.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: July 14, 1981
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Teddy L. Pickett, Isidro D. Ignacio, Marco Rojas